C111113331333132322331333133313331333133313121111331333232223121   >>    C11111333133313232233133313331333133313331312111133133323222312   <<    C111113331333132322331333133313331333133313121111331333232223123   >>      C111113331333132322331333133313331333133313121111331333232223122   >>